#include"mrrr.h"
bool plsame(char *ca, char *cb) {
	/* System generated locals */
	bool ret_val;

	/* Local variables */
	int inta, intb, zcode;

	/*  -- LAPACK auxiliary routine (version 3.1) -- */
	/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
	/*     November 2006 */

	/*     .. Scalar Arguments .. */
	/*     .. */

	/*  Purpose */
	/*  ======= */

	/*  LSAME returns .TRUE. if CA is the same letter as CB regardless of */
	/*  case. */

	/*  Arguments */
	/*  ========= */

	/*  CA      (input) CHARACTER*1 */

	/*  CB      (input) CHARACTER*1 */
	/*          CA and CB specify the single characters to be compared. */

	/* ===================================================================== */

	/*     .. Intrinsic Functions .. */
	/*     .. */
	/*     .. Local Scalars .. */
	/*     .. */

	/*     Test if the characters are equal */

	ret_val = *(unsigned char *) ca == *(unsigned char *) cb;
	if (ret_val) {
		return ret_val;
	}

	/*     Now test for equivalence if both characters are alphabetic. */

	zcode = 'Z';

	/*     Use 'Z' rather than 'A' so that ASCII can be detected on Prime */
	/*     machines, on which ICHAR returns a value with bit 8 set. */
	/*     ICHAR('A') on Prime machines returns 193 which is the same as */
	/*     ICHAR('A') on an EBCDIC machine. */

	inta = *(unsigned char *) ca;
	intb = *(unsigned char *) cb;

	if (zcode == 90 || zcode == 122) {

		/*        ASCII is assumed - ZCODE is the ASCII code of either lower or */
		/*        upper case 'Z'. */

		if (inta >= 97 && inta <= 122) {
			inta += -32;
		}
		if (intb >= 97 && intb <= 122) {
			intb += -32;
		}

	} else if (zcode == 233 || zcode == 169) {

		/*        EBCDIC is assumed - ZCODE is the EBCDIC code of either lower or */
		/*        upper case 'Z'. */

		if (inta >= 129 && inta <= 137 || inta >= 145 && inta <= 153
				|| inta >= 162 && inta <= 169) {
			inta += 64;
		}
		if (intb >= 129 && intb <= 137 || intb >= 145 && intb <= 153
				|| intb >= 162 && intb <= 169) {
			intb += 64;
		}

	} else if (zcode == 218 || zcode == 250) {

		/*        ASCII is assumed, on Prime machines - ZCODE is the ASCII code */
		/*        plus 128 of either lower or upper case 'Z'. */

		if (inta >= 225 && inta <= 250) {
			inta += -32;
		}
		if (intb >= 225 && intb <= 250) {
			intb += -32;
		}
	}
	ret_val = inta == intb;

	/*     RETURN */

	/*     End of LSAME */

	return ret_val;
} /* lsame_ */
